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Summary: Nested Classes | Methods | Inherited Methods

# NumberRangeFormatter

`public abstract class NumberRangeFormatter`
`extends Object` ``

java.lang.Object
↳ | android.icu.number.NumberRangeFormatter

The main entrypoint to the formatting of ranges of numbers, including currencies and other units of measurement.

Usage example:

     NumberRangeFormatter.with()
             .identityFallback(RangeIdentityFallback.APPROXIMATELY_OR_SINGLE_VALUE)
             .numberFormatterFirst(NumberFormatter.with().unit(MeasureUnit.METER))
             .numberFormatterSecond(NumberFormatter.with().unit(MeasureUnit.KILOMETER))
             .locale(ULocale.UK)
             .formatRange(750, 1.2)
             .toString();
     // => "750 m - 1.2 km"

Like NumberFormatter, NumberRangeFormatter instances (i.e., LocalizedNumberRangeFormatter and UnlocalizedNumberRangeFormatter) are immutable and thread-safe. This API is based on the fluent design pattern popularized by libraries such as Google's Guava.

See also:

- `NumberFormatter`

## Summary

### Nested classes
`enum` | `NumberRangeFormatter.RangeCollapse` Defines how to merge fields that are identical across the range sign.
`enum` | `NumberRangeFormatter.RangeIdentityFallback` Defines the behavior when the two numbers in the range are identical after rounding.
`enum` | `NumberRangeFormatter.RangeIdentityResult` Used in the result class FormattedNumberRange to indicate to the user whether the numbers formatted in the range were equal or not, and whether or not the identity fallback was applied.

### Public methods
`static UnlocalizedNumberRangeFormatter` | `with()` Call this method at the beginning of a NumberRangeFormatter fluent chain in which the locale is not currently known at the call site.
`static LocalizedNumberRangeFormatter` | `withLocale(Locale locale)` Call this method at the beginning of a NumberRangeFormatter fluent chain in which the locale is known at the call site.
`static LocalizedNumberRangeFormatter` | `withLocale(ULocale locale)` Call this method at the beginning of a NumberRangeFormatter fluent chain in which the locale is known at the call site.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

## Public methods

### with

    public static UnlocalizedNumberRangeFormatter with ()

Call this method at the beginning of a NumberRangeFormatter fluent chain in which the locale is not currently known at the call site.

Returns
`UnlocalizedNumberRangeFormatter` | An `UnlocalizedNumberRangeFormatter`, to be used for chaining.

### withLocale

    public static LocalizedNumberRangeFormatter withLocale (Locale locale)

Call this method at the beginning of a NumberRangeFormatter fluent chain in which the locale is known at the call site.

Parameters
`locale` | `Locale`: The locale from which to load formats and symbols for number range formatting.

Returns
`LocalizedNumberRangeFormatter` | A `LocalizedNumberRangeFormatter`, to be used for chaining.

### withLocale

    public static LocalizedNumberRangeFormatter withLocale (ULocale locale)

Call this method at the beginning of a NumberRangeFormatter fluent chain in which the locale is known at the call site.

Parameters
`locale` | `ULocale`: The locale from which to load formats and symbols for number range formatting.

Returns
`LocalizedNumberRangeFormatter` | A `LocalizedNumberRangeFormatter`, to be used for chaining.

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